- given: an installed summain
  function: install_summain

- given: directory {dirname}
  function: create_directory

- given: file {filename}
  function: create_file

- given: symlink {linkname} pointing at {target}
  function: create_symlink

- given: atime for {filename} is {timestamp}
  function: set_atime

- given: mtime for {filename} is {timestamp}
  function: set_mtime

- then: output matches file {filename}
  function: output_matches_file
